Ratto on Boldin: '49ers nailed one'

Anquan Boldin had six receptions for 104 yards and one touchdown in the Super Bowl against the 49ers. (USA TODAY IMAGES)

Programming note: For a complete breakdown and analysis of the 49ers' trade for Anquan Boldin, tune in to SportsNet Central tonight at 6:00 and 10:30 on CSN Bay Area.

On the eve of the free-agent signing period, the 49ers reportedly made a major splash with the addition of wide receiver Anquan Boldin in a trade from the Baltimore Ravens for a sixth-round draft pick.

Aaron Wilson of The Baltimore Sun first reported the news of the deal that sends Boldin from John Harbaugh’s Ravens to Jim Harbaugh’s 49ers.

Boldin, a 10-year veteran, was a key figure in the Ravens' 34-31 victory over the 49ers in Super Bowl XLVII with six receptions for 104 yards and one touchdown.

Boldin, who played the first seven seasons of his NFL career with the Arizona Cardinals, caught 65 passes for 921 yards and four touchdowns last season. He is scheduled to earn $6 million in base salary in 2013.

Boldin joins a 49ers receiving corps that features Michael Crabtree, who led the 49ers last season with 85 receptions for 1,105 yards and nine touchdowns.

Mario Manningham and Kyle Williams sustained season-ending ACL tears. Manningham, the 49ers' No. 2 receiver, is not expected to be cleared to practice until at least the middle of training camp. Williams should be ready for the start of training camp.

First-round draft pick A.J. Jenkins, who has been working out with Colin Kaepernick in Atlanta, also will complete for playing time this season. Jenkins did not catch a pass as a rookie. The 49ers are not expected to re-sign veteran Randy Moss, who two weeks ago announced a farewell to the 49ers via Twitter.